just how much abuse do these rims take? Im building a bike from scratch, for our stock bike series next year and with no weight limit now, Im seriously considering building it around a pair of these TT rims

has it been a common problem, or is it possibly related to other factors, ie very cold weather, or have the breakages occured during real heavy knocks on fast superbike, brushless setups?

just how much abuse do these rims take? Im building a bike from scratch, for our stock bike series next year and with no weight limit now, Im seriously considering building it around a pair of these TT rims

has it been a common problem, or is it possibly related to other factors, ie very cold weather, or have the breakages occured during real heavy knocks on fast superbike, brushless setups?

The original Rims (PD08-0007) can handle a lot to say the least. I have been using them since August 2009 (Prototype) and this full season 2010. I drove over 600 Lipos this year on these rims and only broke 2 rear and 2 front Rims. They only brake in really heavy crashes (full speed wheelies flying 3-4m high in the air)....
On top of that I have been using a special Carbon Spoke/ Hub Assembly thats considerably stronger than the Wheel Hub Set (PD08-0006) they usually break much earlier. I also have been taking the old tires off the rims in a (over night) acetone bath and they can handle that too.

You will have to put about 20-30g of lead along the middle of at least the FRONT rim (between the grooves for the tire). Otherwise you will have trouble with the handling of the bike. The rim, tire and tire insert (+lead) but w/o the spokes should have about 110+g.

Pro Tip: If you have the time to play around try to find (=make) tire inserts that are heavy so you reach the weight without lead....